Drop Http namespace, the Router namespace will contain what minimal HTTP handling it needs.
Add some "use" statements for conciseness.
Improvements to ArrayUtil::keyByValues.
create-phar.php/make - Just output one .phar, the gzipped tar version.
Trying out letting composer generate an autoload.
Added phpunit config and renamed test files to conform to expected naming.
Added String and Xml classes which should have been picked up in previous commit, as well as SuperGlobal reorg.